2009 SUBARU TRIBECA Exhaust

GD(H6DO)-182
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DF:DTC P1152 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (LOW) (BANK 1
SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect that λ value remains low.
Judge as NG when lambda value is abnormal in accordance with λ value of front oxygen (A/F) sensor and
running conditions such as vehicle speed, amount of intake air engine coolant temperature, sub feedback
control, etc.
2. COMPONENT DESCRIPTION
λ value = Actual air fuel ratio/Theoretical air fuel ratio
λ >1: Lean
λ < 1: Rich
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)

GD(H6DO)-184
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DG:DTC P1153 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (HIGH) (BANK 1
SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect that λ value remains high.
Judge as NG when lambda value is abnormal in accordance with λ value of front oxygen (A/F) sensor and
running conditions such as vehicle speed, amount of intake air engine coolant temperature, sub feedback
control, etc.
2. COMPONENT DESCRIPTION
λ value = Actual air fuel ratio/Theoretical air fuel ratio
λ >1: Lean
λ < 1: Rich
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)

GD(H6DO)-197
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DY:DTC P2096 POST CATALYST FUEL TRIM SYSTEM TOO LEAN (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect the malfunction of fuel system from the size of the sub feedback learning value.
Control the sub feedback learning and judge as NG when the learning value is in the lean zone.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously when idling or when the vehicle is at a constant speed of 80 km/h (50
MPH).
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time when the following conditions are established is higher than 5 sec-
onds.
Judge as OK and clear the NG when the continuous time of the following conditions not being established is
more than 5 seconds.
(A) Electromotive force (C) Rich (E) Theoretical air fuel ratio
(B) Air fuel ratio (D) Lean (F) Comparative voltage

(1) Atmosphere (2) Exhaust gas (3) Electromotive force
Secondary Parameters Enable Conditions
Continuous time when all conditions are
established.
≥ 1 sec.
Sub feedback learning execution condi-
tions
Complete
Judgment Value
Malfunction Criteria Threshold Value
Sub feedback learning value < –0.023
EN-01696
(3)V(1)
(2) (2)
(E)
(F)
(C) (B) (D)
(A)

GD(H6DO)-199
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DZ:DTC P2097 POST CATALYST FUEL TRIM SYSTEM TOO RICH (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect the malfunction of fuel system from the size of the sub feedback learning value.
Sub feedback learning is being performed. When the learning value goes to the rich side, judge as NG.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously when idling or when the vehicle is at a constant speed of 80 km/h (50
MPH).
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time when the following conditions are established is higher than 5 sec-
onds.
Judge as OK and clear the NG when the continuous time when the following conditions are not established
is more than 5 seconds.
(A) Electromotive force (C) Rich (E) Theoretical air fuel ratio
(B) Air fuel ratio (D) Lean (F) Comparative voltage

(1) Atmosphere (2) Exhaust gas (3) Electromotive force
Secondary Parameters Enable Conditions
Continuous time when all conditions are
established.
≥ 1 sec.
Sub feedback learning execution condi-
tions
Completed
Judgment Value
Malfunction Criteria Threshold Value
Sub feedback learning value≥ 0.018
EN-01696
(3)V(1)
(2) (2)
(E)
(F)
(C) (B) (D)
(A)

ME(H6DO)-2
General Description
MECHANICAL
1. General Description
A: SPECIFICATION
NOTE:
OS: Oversize US: undersize
Engine
Cylinder arrangementHorizontally opposed, liquid cooled,
6-cylinder, 4-stroke gasoline engine
Va l ve s y s t e m m e c h a n i s mChain driven, double overhead camshaft,
4-valve/cylinder
Inside diameter×stroke mm (in) 89.2 × 80 (3.512 × 3.150)
Displacementcm3 (cu in)3,000 (183)
Compression ratio10.7
Compression pressure (350 rpm and fully open
throttle):kPa (kgf/cm2, psi)1,275 — 1,471 (13.0 — 15.0, 185 — 213)
Number of piston rings Pressure ring: 2, Oil ring: 1
Intake valve timing
Min. advanceOpen BTDC 47°
Close ABDC 23°
Max. retardOpen ATDC 3°
Close ABDC 73°
Exhaust valve timingOpen BBDC 60°
Close ATDC 6°
Va l ve c l e a r a n c e m m ( i n )Intake0.20 +0.04 -0.06 (0.0079 +0.0016 -0.0024)
EXHAUST 0.35±0.05 (0.0138±0.020)
Idle rpm [“P” or “N” range] rpmNo load 650±50
A/C ON 770±50
Ignition order 1 → 6 →3 → 2 → 5 → 4
Ignition timing BTDC/rpm 15°±8°/650

ME(H6DO)-3
General Description
MECHANICAL
Camshaft
Thrust clearance mm (in)Intake Standard 0.075 — 0.135 (0.0030 — 0.0053)
Exhaust Standard 0.030 — 0.090 (0.0012 — 0.0035)
Cam lobe height mm (in)Intake
HIGH Standard 42.09 — 42.19 (1.6571 — 1.6610)
LOW1 Standard 38.14 — 38.24 (1.5016 — 1.5055)
LOW2 Standard 35.44 — 35.54 (1.3953 — 1.3992)
Exhaust Standard 41.65 — 41.75 (1.6398 — 1.6437)
Cam base circle diameter mm (in)Intake
HIGH Standard 32.00 (1.2598)
LOW1 Standard 31.84 (1.2535)
LOW2 Standard 31.84 (1.2535)
Exhaust Standard 32.00 (1.2598)
Journal O.D. mm (in)Fr o nt S ta n da r d 3 7. 9 46 — 3 7 . 96 3 ( 1 . 49 3 9 — 1. 4 9 46 )
Except for front Standard 25.946 — 25.963 (1.0215 — 1.0222)
Oil clearance mm (in) Standard 0.037 — 0.072 (0.0015 — 0.0028)
Cylinder
head
Flatness mm (in) Standard 0.02 (0.0008)
Inner diameter of valve lifter hole mm (in) 32.994 — 33.016 (1.2990 — 1.2998)
Standard height mm (in) 124±0.05 (4.88±0.0020)
Va l ve s e a t
Refacing angle90°
Contacting width mm (in)Intake Standard 1.0 (0.039)
Exhaust Standard 1.5 (0.059)
Va l ve g u i d eInside diameter mm (in) 5.500 — 5.512 (0.2165 — 0.2170)
Protrusion above head mm (in) 11.4 — 11.8 (0.449 — 0.465)
Va l ve
Head edge thickness mm (in)Intake Standard 1.0 (0.039)
Exhaust Standard 1.2 (0.047)
Stem outer diameter mm (in)Intake 5.455 — 5.470 (0.2148 — 0.2154)
Exhaust 5.445 — 5.460 (0.2144 — 0.2150)
Stem oil clearance mm (in)Intake Standard 0.030 — 0.057 (0.0012 — 0.0022)
Exhaust Standard 0.040 — 0.067 (0.0016 — 0.0026)
Overall length mm (in)Intake 99.7 (3.925)
Exhaust 105.2 (4.142)
Outer diameter of valve lifter mm (in) 32.959 — 32.975 (1.2976 — 1.2982)
Va l ve s p r i n g
Free length mm (in)IntakeInner 39.55 (1.5571)
Outer 41.18 (1.6213)
Exhaust 46.32 (1.8236)
SquarenessIntakeInner 2.5°1.7 mm (0.067 in)
Outer 2.5°1.8 mm (0.071 in)
Exhaust 2.5°2.0 mm (0.079 in)
Cylinder
block
Standard height mm (in) 202 (7.95)
Cylinder inner diameter mm (in) StandardA89.205 — 89.215 (3.5120 — 3.5124)
B89.195 — 89.205 (3.5116 — 3.5120)
Cylindricality mm (in) Standard 0.030 (0.0012)
Out-of-roundness mm (in) Standard 0.010 (0.0004)
Piston clearance mm (in) Standard –0.010 — 0.010 (–0.0004 — 0.0004)
PistonOuter diameter mm (in)
StandardA89.205 — 89.215 (3.5120 — 3.5124)
B89.195 — 89.205 (3.5116 — 3.5120)
0.25 (0.0098) OS 89.445 — 89.465 (3.5215 — 3.5222)
0.50 (0.0197) OS 89.695 — 89.715 (3.5313 — 3.5321)
Inner diameter of piston pin hole Standard 22.000 — 22.006 (0.8661 — 0.8664)
Piston pin
Outer diameter mm (in) Standard 21.994 — 22.000 (0.8659 — 0.8661)
Standard clearance between piston and piston
pinmm (in) Standard 0.004 — 0.008 (0.0002 — 0.0003)

ME(H6DO)-7
General Description
MECHANICAL
3. TIMING CHAIN
(1) Crank sprocket (13) Chain tensioner lever (LH) (24) Idler sprocket (upper)
(2) Oil relief case (14) Chain tensioner (LH)
(3) Inner rotor (15) Water pumpTightening torque: N·m (kgf-m, ft-lb)
(4) Outer rotor (16) O-ringT1:6.4 (0.65, 4.7)
(5) Chain guide (center) (17) Chain guide (LH)T2: 7.8 (0.8, 5.8)
(6) Intake cam sprocket (RH) (18) Chain guide (LH: between cams)T3: Sprocket.>(7) Exhaust cam sprocket (RH) (19) Timing chain (LH)
(8) Chain guide (RH: between cams) (20) Intake cam sprocket (LH)T4: 16 (1.6, 12)
(9) Timing chain (RH) (21) Exhaust cam sprocket (LH)T5: 69 (7.0, 50.6)
(10) Chain guide (RH) (22) Idler sprocket (lower)T6: Pump.>(11) Chain tensioner lever (RH) (23) Idler sprocket collar
(12) Chain tensioner (RH)
ME-02380
T6
(2)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)(16)
(17)
(18)(19)
(5)
T3
T3
T5
T2
T1
T1
T1
T4
T4
T4
T4
T4
(7)
(21)
(20)
(22)
(23)
(23)
(24)
(6)
(1)
(3)
(4)

ME(H6DO)-9
General Description
MECHANICAL
(1) Rocker cover (RH) (16) Cylinder head (RH) (31) Exhaust camshaft cap (Front LH)
(2) Oil switching solenoid valve (RH) (17) Gasket (32) Front camshaft cap (LH)
(3) Oil switching solenoid valve holder
(RH)
(18) Cylinder head gasket (RH) (33) Plug
(19) Oil switching solenoid valve (LH) (34) Oil pipe (LH)
(4) Oil switching solenoid valve gas-
ket
(20) Oil switching solenoid valve holder
(LH)
(35) Rocker cover (LH)

(5) Rear chain cover (21) Oil switching solenoid valve gas-
ket
Tightening torque: N·m (kgf-m, ft-lb)
(6) Oil pipe (RH)T1: Head.>(7) Oil flow control solenoid valve
(RH)
(22) Cylinder head gasket (LH)
(23) Cylinder head (LH)T2: shaft.>(8) Intake camshaft cap (Center RH) (24) Intake camshaft (LH)
(9) Intake camshaft cap (Rear RH) (25) Exhaust camshaft (LH)T3: Switching Solenoid Valve.>(10) Exhaust camshaft cap (Rear RH) (26) Oil flow control solenoid valve (LH)
(11) Exhaust camshaft cap (Center
RH)
(27) Intake camshaft cap (Rear LH)T4:6.4 (0.65, 4.7)
(28) Intake camshaft cap (Center LH)T5: 9.75 (1.0, 7.2)
(12) Exhaust camshaft cap (Front RH) (29) Exhaust camshaft cap (Rear LH)T6:16 (1.6, 12)
(13) Front camshaft cap (RH) (30) Exhaust camshaft cap (Center
LH)
T7: 60 (6.1, 44)
(14) Intake camshaft (RH)T8: 29 (3.0, 21.4)
(15) Exhaust camshaft (RH)